A gambler belives that he has learned to predict the color of a card befroe it is drawn from the deck. In order to test this, he predicts a color, draws a card from a fresh deck of 52 cards and observes its color, replaces the card, and then shuffles. He repeats this process 10 times, and finds that he got 5 predictions incorrect. Using a sign test, test the hypothesis that the gambler is getting fewer predictions inccorect than one would expect due to chance. Critical Value = ?

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